John eldbe



J. ELDER, Jr.

Steam Heater.

No. 59,198. Patented 0m. 30, 1866.

NITED STATES PATENT OFFICE.

JOHN ELDER, JR., OF NEW YORK, N. Y.

STEAM-HEATING APPARATUS.

Specification forming part of Letters Patent No. 59,198, dated October 30, 1866.

To all whom it may concern:

Be it known that I, JOHN ELDER, Jr., of

the city and State of New York, have invented, made, and applied to use a certain new and useful Improvement in Steam-Heating Apparatus; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the annexed drawings, making part of this specification, wherein- Figure 1 is a vertical transverse section of my improved apparatus; and Fig. 2 is an elevation of the same, the air-pipe being partially removed to show the other parts.

Similar marks of reference denote the same parts.

Steam-coils have heretofore been introduced within a casing through which air passes to tubes running up through the walls to the rooms above. Such coils have usually been composed of a series of nearly horizontal pipes, connected together at the alternate ends, so that the steam circulates through them, and the condensation is returned to the boiler or passes off through a trap. This character of coil in very cold weather is liable to injury in consequence of the water of condensation freezing in the pipes; and besides this, considerable space is occupied by the coil in the cellar or lower story of the building.

The nature of my said invention consists in a steam coil or heater formed of a series of pipes passing vertically, or nearly so, into the air flue or pipe, and connected at their lower ends with a steam and condensation box, fitted in such a manner that the steam is forced to circulate through the said vertical coil, and all the condensation runs back immediately into the box, and passes into the boiler or a water-trap.

By this construction the liability of the apparatus becoming injured by the frost is entirely avoided, and much less space is occupied than with the coils heretofore made.

In the drawings, A represents the air flue or pipe, passing up through the wall or partition of the building, as at b, and provided with one or more registers, c, or outlets, from which the heated air passes into the building or room.

(I is a metal box, of any desired size or shape, fitted with a cover, having bosses for receiving the gids of the pipes forming the vertical steam-coil. There may be any desired number of these pipes, according to the size of the apparatus. I Y

The lower portions of the pipes pass off at an inclination, as shown at e 6, Fig.1, and the pipes f and 9 pass up nearly vertically from them and unite at the bend h.

The usual screw-sockets or bends are to be employed for uniting the respective pieces of pipe.

'5 is the steam-pipe, and l is the pipe at the bottom of the box d, for the water of condensation to pass off.

k k are pipes, with air-cocks upon their upper ends, to allow of the escape of air from the apparatus when it is started, and m m are hangers to support; the coil from the beams or otherwise.

The steam, when admitted throughthe pipe t', blows against the back of the box 01, and rises, passing first up through the back pipes, f, of the coil 5 thence driving out the air before it as the steam continues to pass up f and gradual'y fill the pipes g, the air being allowed to blow ofl through the pipes and cocks It).

In order to insure the freeing of the apparatus from air, I prefer that the short pipes r be provided, extending from the lower ends of e and 9 below the steam-inlet pipe 2', so that the steam will be compelled to pass up the pipes f and down the pipes g, driving out the air before it.

The box (I and its cover may all be cast in one piece, if desired, so as to avoid the necessity of attaching the separate cover. The pipes f and 9 may pass directly up from the box d, instead of having the inclined pipes e, the air-flue passing up directly over said box d.

What I claim, and desire to secure by Letters Patent, is- I The coil of pipes f 9, extending up in the air-pipe a, and connected with the steam-box at the lower end of the said coil, substantially in the manner specified.

In witness whereof I have hereunto set my signature this 4th day of September, A. D. 1866.

JOHN ELDER, JR.

Witnesses:

THOS. GEO. HAROLD, GEO. D. WALKER. 

